Lock collar



FIG. 1 is a perspective view of the lock collar showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear front elevational view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a right side elevational view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom plan view thereof;

FIG. 8 is a perspective view showing a lock collar without the lock of my new design; and,

FIG. 9 is a further perspective view showing a lock collar without the lock of my new design.

The broken line illustration of environmental structure in the drawings form no part of the claimed design. 

CLAIM The ornamental design for a lock collar, as shown and described. 